Wellness Topics for Infants 0 to 2 Years

Feeding Your 1- to 3-Month-Old

During your baby's first 3 months, breast milk or formula will provide all the nutrition needed.

But as your infant develops physically and mentally, the feeding process will evolve. In general, babies move toward consuming more milk during each feeding, so won't need to feed as often and will sleep longer at night.

But there will be times during the next year — and, especially, in the first 3 months — when a growth spurt increases your baby's appetite. Continue to feed on demand and increase the number of feedings as needed.

Your infant also will become more alert as the weeks progress, starting to coo and developing a social smile. So there will probably be more interaction between you and your baby during feedings.

The following are general guidelines, and your baby may be hungrier more or less often than this. That's why it's important to pay attention to your infant's signals of being hungry or full. A baby who is getting enough might slow down, stop, or turn away from the breast or bottle.

Breastfeeding: How Much and How Often?

During these months, breastfed infants start to feed less frequently and sleep for longer periods at night. You can be reassured that your breastfed infant probably is eating enough if he or she:

seems alert, content, and active

is steadily gaining weight, growing, and developing

feeds six to eight times per day

is wetting and soiling diapers on a regular basis

Your baby might not be eating enough if he or she doesn't appear satisfied, even after feeding, and cries constantly or is irritable. Call your baby's doctor if notice any of these signs.

Remember that after about a month, breastfed babies tend to have fewer bowel movements than they did before. When your child is around 2 months old, he or she may not have a bowel movement after each feeding, or even every day. If your infant still hasn't had a bowel movement after 3 days, call your doctor.

During periods of rapid growth, you may notice that your little one wants to feed more frequently. This frequent nursing prompts the mother's body to increase the milk supply, and in a couple of days, supply and demand will get into balance.

Exclusively breastfed infants should get vitamin D supplements within the first few days of life, but additional supplements, water, juice, and solid foods aren't usually necessary.

Formula Feeding: How Much and How Often?

Babies digest formula more slowly, so if you're bottle-feeding, your baby may have fewer feedings than a breastfed infant.

As your baby grows, he or she will be able to eat more and may go for longer stretches between feedings. You'll also notice that your baby is starting to sleep longer at night.

During the second month, infants may take about 4 or 5 ounces at each feeding. By the end of 3 months, your baby will probably need an additional ounce at each feeding.

One note about formula feeding: It's easier to overfeed when using formula because it takes less effort to drink from a bottle than from a breast. So make sure that the hole on the bottle's nipple is the right size. The liquid should drip slowly from the hole and not pour out. Also, resist the urge to finish feeding the bottle when your baby shows those signs of being full.

Never use a bottle prop — it's a choking hazard. It also can encourage your child to sleep with a bottle in the mouth, which can lead to tooth decay.

A Word About Spitting Up

Many infants "spit up" small amounts after eating or during burping. This gradually gets less frequent by the time a baby is 6 months old, and is nearly gone by about 10 months. Spitting up a small amount — less than 1 ounce (30 ml) — shouldn't be a concern as long as it happens within an hour of feeding and doesn't bother the baby.

You can reduce spitting up in these early months by:

feeding before the baby gets very hungry

keeping the baby in a semi-upright position during the feeding and for an hour afterwards

burping the baby regularly

avoiding overfeeding

not jostling or playing vigorously with the baby right after a feeding

If your baby seems to be spitting up large amounts, spitting up forcefully, is irritable during or after feedings, or seems to be losing weight or not gaining weight as expected, call your doctor. And if your child has a fever, or shows any signs of dehydration (such as not wetting diapers), call the doctor right away.

Contact your doctor if you have any questions or concerns about feeding your infant.

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Seattle Children’s provides healthcare without regard to race, color, religion (creed), sex, gender identity or expression, sexual orientation, national origin (ancestry) or disability. Financial assistance for medically necessary services is based on family income and hospital resources and is provided to children under age 21 whose primary residence is in Washington, Alaska, Montana or Idaho.